# What does refresh-mapping do?

**URL:** <https://discuss.elastic.co/t/what-does-refresh-mapping-do/25694>\
**Category:** Elasticsearch\
**Created:** [July 16, 2015, 6:17am UTC](https://discuss.elastic.co/t/what-does-refresh-mapping-do/25694 "2015-07-16T06:17:25Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![mkliu](https://avatars.discourse-cdn.com/v4/letter/m/74df32/32.png) [@mkliu](https://discuss.elastic.co/u/mkliu)\
**Post date:** [July 16, 2015, 6:17am UTC](https://discuss.elastic.co/t/what-does-refresh-mapping-do/25694/1 "2015-07-16T06:17:25Z")

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I'm seeing refresh-mapping coming up a lot when looking at pending\_nodes. What does it do and how could I avoid it? Tried to search up online but didn't find anything useful.

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**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [July 18, 2015, 4:11am UTC](https://discuss.elastic.co/t/what-does-refresh-mapping-do/25694/2 "2015-07-18T04:11:57Z")

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It means that whatever data you are indexing is dynamically changing the mapping for the index.

If you want to avoid it then define your own mappings.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 6, 2017, 12:00am UTC](https://discuss.elastic.co/t/what-does-refresh-mapping-do/25694/3 "2017-07-06T00:00:41Z")

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